Dry roasted soybeans are high in folate, which is a B vitamin that is important for pregnant women and nursing mothers. Folate protects your DNA against harmful mutations, aids in the development of new cells and can help prevent anemia.
Roasting soybeans before feeding them to your stock kills mold and other contaminants and makes the beans easier to digest. Roasting ties up the protein in the fiber of the soybeans and allows the protein to be absorbed by the animal, therefore increasing the value of the feed itself.